TY  - BOOK
AU  - Robert,Twiss J
TI  - Structural geology:an introduction to geology techniques
SN  - 0-471-08043-8
AV  - GY QE601.R23 
PY  - 1973///
CY  - New York	
PB  - : John Wiley and Sons
KW  - Geology, structural
N1  - Includes bibliographical references
ER  -